baber/WOPTO huggingface dataset:
Patent GB-1371158-A (GB)
Title: Annular friction member for a brake or clutch
IPC: F16D43/10
Filed: 1972-11-09
Abstract: 1371158 Clutch discs; discs for disc brakes BORG-WARNER CORP 9 Nov 1972 [26 Jan 1972] 51767/72 Headings F2C and F2E A rotor member for use in a clutch or a disc brake comprises annular plates 16, 17 connected together by spacers and having between them an annular fin assembly 30 composed of a plurality of adjacent folds 34 of strip material defining channels 40, as shown in Fig. 5. The radially extending planar surface portions of each fold have louvres shown in Fig. 6, louvres 42 and 43 directing air or liquid out of, and louvres 41 and 44 directing air or liquid into, the channel 40 of Fig. 6, a radial flow of air or liquid being thus generated through the assembly 30. In an alternative embodiment (Fig. 4, not shown) two annular assemblies, one radially outside the other, are provided. The plates 16 and 17 may be of steel, with the friction surfaces 28 and 29 hardened, or of aluminium, and the assembly 30 may be of copper, aluminium or steel. The rotor shown in Fig. 2 is connected by straps to a hub 11, the straps being riveted to hub and rotor. The assembly 30 may be brazed or bonded to the plates 16 and 17.
Patent GB-1102326-A (GB)
Title: Synthetic linear copolyterephthalamides and shaped articles made therefrom
IPC: C08G69/26
Filed: 1964-12-22
Abstract: Polyamide copolymers are derived from hexamethylene diamine and a mixture of (a) terephthalic and (b) beta-methyl or -ethyl adipic acid in a molar ratio of (a):(b) between 1:9 and 6:4, optionally with the addition of a viscosity stabilizer which may be an excess of one of the specified reactants.  Minor amounts of other acids, e.g. isophthalic or adipic may also be used.  Polymerization is preferably effected in the presence of water, a thermostabilizer (e.g. phosphoric acid, p-toluene sulphonic acid, tannin, or copper, manganese or alkali halides) and a photostabilizer (e.g. hydroquinone or organic or inorganic copper or manganese salts). The polymers are primarily suitable for melt spinning, with or without pigments such as titania, but may also be moulded.  The preferred polymers have an intrinsic viscosity of 0.6 to 1.5.
Patent GB-1299509-A (GB)
Title: Device for rotatably supporting a roll of cloth
Inventor: LINDELOW BJORN
IPC: G03B15/06
Filed: 1970-11-03
Abstract: 1299509 Background screen B LINDELOW 3 Nov 1970 [5 Nov 1969] 52140/70 Heading A6M [Also in Division G2] A device for rotatably supporting rolls comprising a web of cloth or the like, serving the purpose of, e.g. a background screen in a photographic studio comprises two parallel rollers 10 (and 11, not shown) in a horizontal plane rotatably mounted on discs 5 and 6 supported by supports 3 and 4, a pulley 18 driving gears 15, one connected to each roller 10, through a gear 16 such that rotation of the pulley rotates both rollers in the same sense, simultaneously, and at the same speed. The roll of cloth is placed on these rollers, which are made of a friction material such as rubber, and rotated by them so as to be rolled up or unrolled, the cloth passing between the rollers. The pulley is rotated by an endless cord passing around it, and passing through a hook of a weight so as to prevent the weight of the cloth from rotating the rollers by itself.
Patent GB-1362130-A (GB)
Title: Furniture unit
IPC: A47B87/02
Filed: 1972-11-10
Abstract: 1362130 Cabinets; shelving TADA PLA CO Ltd 10 Nov 1972 [3 March 1972 8 April 1972] 52145/72 Heading A4B An extensible cabinet or shelving assembly includes a basic unit comprising a rectangular base 3 and a pair of side walls 2, 2a, the base 3 having at each corner an upwardly extending column 25 which locates in a corresponding hollow lower corner of an associated side wall 2, 2a, the latter having at their upper corners extensions 13 and the base 3 having on the underside of its corners downwardly open recesses 44 which can receive the extensions 13 on side walls 2, 2a of a similar lower unit, the extensions 13 and recesses 44 being provided with abutments 24 and holes 28 which resiliently inter-lock with a snap action. A top wall 5 receives the extensions 13 and have slots 34 into which the abutments 24 snap engage. Up and over doors 6 may be fitted on two opposite sides. Units may be joined side by side using a common partition wall.
Patent GB-1306817-A (GB)
Title: Semiconductor devices
IPC: H01L21/74
Filed: 1970-11-03
Abstract: 1306817 Semi-conductors INTERNATIONAL BUSINESS MACHINES CORP 3 Nov 1970 [10 Nov 1969] 52156/70 Heading H1K A monolithic semi-conductor device comprises a P-type S1<SP>1</SP> substrate 1 with a surface layer 2 of Si O 2  into which a window 3 is etched over photoresist through which P and A s  are diffused into the substrate to produce overlying impurity regions (Fig. 1C). Oxide 2 is removed and a P-epitaxial layer 5 is grown, after which an oxide layer 10 is formed thereon and the As and P dopants are out-diffused until P reaches the upper surface of layer 5 (Fig. 1E) to form a pocket of N-type material extending within layer 5 and substrate 1, having regions 12 of heavily doped N+ material containing As and P lightly doped region 3 of N material containing out-diffused P. A transistor is formed by opening a window in layer 10 and diffusing P-type base region 16 with B dopant within region 13 (Fig. 1G) and emitter and collector N+ regions 19, 20 through other windows 17, 18 with P or As dopant (Fig. 1H). The dopants may be introduced simultaneously from a mixed source, or successively from separate sources, e.g. thermally; followed by heat treatment in most oxygen for out-diffusion and oxidation.  The substrate may itself be epitaxially deposited. Collector-substrate insulation is-formed by the N-P junction between regions 13 and 1, 5 while buried layer 12 reduces collector resistance of a bipolar transistor within region 11, within which diffused resistors may be formed. The NP isolation junction has reduced isolation capacitance. Impurity distribution profiles (Figs. 2, 3 not shown) and typical structural and operating parameters-are given.
Patent GB-1344280-A (GB)
Title: Aromatic carboxylic acids
IPC: C07C51/265
Filed: 1971-11-12
Abstract: 1344280 Aromatic carboxylic compounds BAYER AG 12 Nov 1971 [27 Nov 1970] 52669/71 Heading C2C The invention comprises compounds of the general formula in which the is propylidene groups are linked to ring B in the meta- or para-position relative to one another, and to rings A and C in the meta- or para-position to the Y-CO and X-CO- groups respectively; R<SP>1</SP> and R<SP>2</SP> are the same or different and are each a hydrogen atom, an alkyl group having 1 or 2 carbon atoms, an alkoxycarbonyl group having up to 4 carbon atoms, a carboxyl group or a phenoxycarbonyl group; and X and Y are the same or different and are each a halogen atom, an alkoxy group, a mono-, di-, or tri-hydroxyalkoxy group, an alkyl- or dialyl-amino group having up to 18 carbon atoms, an optionally substituted phenoxy group, a phenylamino group. a hydrazino group or an acyloxy group. They may be prepared by oxidizing a compound of the general formula to give a product where Y = X = OH and optionally converting this compound to the corresponding compounds with other X and Y groups.
Patent GB-1275584-A (GB)
Title: Improvements in or relating to boards for erecting bins
Inventor: LOKVIK BJARNE HAFTOR
IPC: B63B35/24
Filed: 1969-10-29
Abstract: 1275584 Joints B H LOKVIK 29 Oct 1969 52979/69 Heading A4H [Also in Division B7] A board 1 for erecting storage bins for fish or ice in a fishing vessel has one or more projections 3 on one edge and a corresponding number of indentations 4 on the other edge, such that when a plurality of boards are mounted in grooved stanchions 5 to form a bin, with adjacent boards facing in opposite directions, as shown, slots 6 and 7 are formed between the boards for drainage, e.g. for fish, and when all the boards face in the same direction, substantially water-tight walls are formed, Fig.3 (not shown), e.g. for ice. The board ends are curved to facilitate entry into the stanchion grooves, Fig. 1 (not shown). The board may be plastic-coated, or cast in plastic in two parts secured together by welding. Alternatively, the board may be hollow and extruded in lengths, which are cut to size and provided with end fittings forming the projections and indentations Fig. 4 (not shown).
Patent GB-1384730-A (GB)
IPC: H05H1/34
Filed: 1972-11-17
Abstract: 1384730 Welding by fusion RIKAGAKU KENKYUSHO 17 Nov 1972 [19 Nov 1971] 53375/72 Addition to 1346790 Heading B3R [Also in Division H5] The plasma jet generator of the parent Specification 1,346,760, is modified by gas shielding the plasma flame from a bushing 103 located about the common plasma nozzle c of the earlier case. The bushing comprises a gas inlet 104 to a first annular chamber 105 which communicates with a second chamber 16 via sixteen apertures 107. The effect of the shielding is to keep the concentration of the working gas of the plasma flame high by using a similar gas in the shield, e.g. oxygen, the gas concentrations being sampled from the gas extractor outlet 113. Fig. 3 (not shown) illustrates a second bushing arrangement forming a skirt for discharging a powder coating. Active gas may be oxygen or nitrogen for use in cutting of aluminium and iron or nitride coating respectively.
Patent GB-1302938-A (GB)
IPC: F16D13/71
Filed: 1970-11-12
Abstract: 1302938 Friction clutches GENERAL MOTORS CORP 12 Nov 1970 [24 Nov 1969] 53888/70 Heading F2C To compensate for material creep in the pressure plate 27 of a friction clutch due to centrifugal force, temperature, &c., and resulting in an increase in axial thickness of the outer portion of the plate, the contact surface of the pressure plate is curved convexly and co-operates with a flat friction surface 22 on the driven plate 18 on assembly. After initial use, the friction surface 22 becomes concave. The radii of curvature of the surface of the pressure plate above and below the mean diameter 52 are respectively in the same ratio as the inner and outer diameters of the annular pressure plate. The friction facings 21, 22 on the driven plate 18 may be fixed by adhesive or rivets,
Patent GB-1243896-A (GB)
Title: Improvements in or relating to production of tar and pitch
IPC: C10C3/00
Filed: 1969-11-05
Abstract: 1,243,896. Pitch and tar. KUREHA KAGAKU KOGYO K.K. 5 Nov., 1969 [6 Nov., 1968], No. 54280/69. Heading C5E. A process for producing pitch and tar suitable as a raw material for the production of. carbon products or for blending with synthetic resins comprises introducing an oil feed stock having an aromatic content greater than 80%, into heat medium having a temperature in the range of from 1300‹ to 2500‹ C. to subject the oil to thermal cracking for a period of from 0.001 to 0.1 seconds at a temperature in the range of from 900‹ to 1500‹ C. under a pressure of from 300 mmHg absolute to 20 kg./cm.<SP>2</SP> gauge, The feedstock may be a washing oil or anthracene oil from carbonization of coal, or a light cracked petroleum oil or tar. The heat medium may be steam or a flame.
Patent GB-1343518-A (GB)
Title: Journal support bearings for rotating shafts
Inventor: IFIELD R J
IPC: F16C32/06
Filed: 1971-11-23
Abstract: 1343518 Bearings IFIELD LABORATORIES PTY Ltd 23 Nov 1971 [30 Nov 1970] 54318/71 Heading F2A A hydrostatic bearing for a spherical journal 2 comprises at least one slipper 4 located in a housing, each slipper having a part spherical bearing surface for engaging the journal. The bearing surface of the slipper has a central recess or has grooves in its surface so as to define a sealing land 3 around the periphery of the surface. A duct 8 through the slipper conducts pressurized fluid from a chamber to the recess or the grooves in order to form the hydrostatic bearing film. Fluid is supplied to the chamber via a duct 9 in the housing. The slipper is movable in the chamber in a direction radial of the shaft and forces on the slipper are balanced by making the area of the surface of the slipper in the chamber equal to that of the sealing land. The slipper may be preloaded by a spring 7. The pressure of fluid supplied to the chamber may be varied according to the radial position of the slipper by connecting the slipper to a valve member (12, Fig. 3, not shown) which varies the supply of fluid through the duct 9. Alternatively, the valve member may be integral with the slipper (Fig. 4, not shown). The pressure of fluid supplied to a plurality of slippers may be controlled by the valve member of one slipper (Fig. 6, not shown).
Patent GB-1419617-A (GB)
Title: Sprayer
IPC: B05B7/32
Filed: 1971-11-24
Abstract: 1419617 Crop spraying FISONS Ltd 3 Jan 1973 [24 Nov 1971] 54493/71 Heading AID Nozzle 17 on a spraying vehicle is fed with chemical from pipe 16 at a pressure controlled by valve 1 to vary with the vehicle speed and give a uniform density of chemical over the ground and water from pipe 15. Chemical enters the valve 1 through an inlet 7 with a spring-biased gate 9 which is opened through rods 11, 12 by the combined pressures on the diaphragm 6 of a fluid supplied through pipe 19 and inlet 14 at a pressure proportional to the square of the vehicle speed and on the diaphragm 5 of the water in pipe 15 acting through pipe 18 and inlet 13 so that variations in the water pressure do not effect the chemical flow rate. In a modification pipe 18 is connected to inlet 14 and pipe 19 to inlet 13.
Patent GB-1426197-A (GB)
Title: Audio-visual teaching apparatus
IPC: G09B7/06
Filed: 1973-11-26
Abstract: 1426197 Educational appliances N JENSEN 26 Nov 1973 [29 Nov 1972] 54779/73 Heading G5G  Audio-visual teaching apparatus comprises a slide projector 2; a magnetic tape recorder 1 for reproducing recorded material related to question slides automatically presented by the projector 2, the slides carrying a code representing either a "yes" or a "no" answer; an electrical control unit 3 including answering switches operable by a student, a "start" lamp 15, a correct-answer lamp 16 and an incorrectanswer lamp 17; a counter 38 for recording the number of correct answers given by a student; a delay unit 4 which senses the audio output from the recorder 1 and which produces an output signal to arrest tape travel whenever the signal on the tape includes a pause or interval larger than the duration of intervals normally occurring in speech; and a power supply 5. In operation, a student listens to the recorded material related to a particular slide; when a pause, e.g. of six seconds or more, occurs at the end of the material, the unit 4 produces a signal to stop the tape travel, and the student then indicates his answer by depressing a "yes" or "no" answer switch. If his answer is correct, a circuit including a relay in unit 3 associated with the code markings on the slide is completed, whereby the lamp 16 is energized and the counter 38 records a correct answer response; otherwise, lamp 17 is energized to indicate an incorrect answer. Actuation of an answer switch also restarts the recording and energizes the slide-change mechanism of the projector, so that the learning sequence continues with further audio and visual material. Suitable relay and transistor circuit arrangements for the units 3 and 4 are described with reference to Figs. 4 and 5 (not shown).
Patent GB-1285210-A (GB)
Title: Power supply for camera system including image intensifier
IPC: H04N5/228
Filed: 1969-11-10
Abstract: 1285210 Static converters WESTINGHOUSE ELECTRIC CORP 10 Nov 1969 [30 Dec 1968] 54842/69 Heading H2F [Also in Division H4] E.H.T. for the photo cathodes of an image intensifier 10 and camera tube 12 of a T.V. camera is derived, during the vertical scan retrace period, from a horizontal scan drive 66 and proportional to the video output of the camera system. An output from the horizontal scan drive 66 is fed via a rectifier and limiter circuit 74 (limiting to 300 volts D.C.) to charge a capacitor C1 via R 1  R 2 . The voltage to which C1 is charged is dependent upon the conductivity of a transistor Q1 controlled by the AGC circuit 70 of the video output. An SCR element S1 is normally non-conductive during the vertical scan period and is turned ON only during the vertical scan retrace period when the vertical scan goes from peak positive to peak negative, which turns OFF a transistor Q2 as its base goes negative with respect to its emitter. This causes a gate signal to be applied to S 1  via a diode D 1 . With S 1  conducting, C 1  is discharged through a step-up transformer primary W 1 , the secondary voltage of which is applied to a conventional voltage multiplier D 2  to D 4 , C 4  to C 6  to give a negative EHT potential (e.g. 24 k.V.) at terminal 24. This potential is applied to a photo cathode 22 of the image intensifier 10. The camera tube photo cathode 34 receives a potential of 7-8 k.V. from a voltage divider R36, R38. If the video output is low then C1 will be charged to a higher voltage and consequently an increased voltage will appear at terminal 24 and which increases the intensification by the image intensifier 10 resulting in a higher video output.
Patent GB-1380327-A (GB)
Title: Ball-type solenoid valves and to the methods of assembling same
Inventor: LOMBARD C
IPC: F16K1/14
Filed: 1972-11-30
Abstract: 1380327 Welding by pressure REGIE NATIONALE DES USINES RENAULT 30 Nov 1972 [21 Dec 1971] 55453/72 Heading B3R [Also in Division F2] In a solenoid-operated valve a magnetic core 2 is electric resistance-welded to a magnetic casing 1 by electrodes 59, 60, the latter of which is centered by an insulating member 64 projecting into the base of the core. The casing has projection lugs (48), Fig. 7 (not shown), pressed out of its end to abut the end piece 3 of the core. A combined closure member guide and casing end cover 24 is electric resistance-welded to the opposite end of the casing 1 by electrodes 69, 73, the former of which is centered by an insulating member 66 that projects through a central aperture in the cover 24 and into the base of the core and is biased by a spring 68. The outer part of the cover 24 is formed with projector lugs (42), Figs. 3 and 4 (not shown), by deformation and shearing to facilitate the welding. A diametral step may be welded across the central aperture of the cover 24 by the electrodes 69, 73 but dispensing with the member 66.
Patent GB-1254114-A (GB)
Title: Improvements in or relating to gas discharge display devices
IPC: G09G3/28
Filed: 1968-11-22
Abstract: 1,254,114. Discharge lamps. OWENSILLINOIS Inc. 22 Nov., 1968 [24 Nov., 1967], No. 55505/68. Heading H1D. A gas-discharge display device comprises an enclosed ionizable gas between two set of conductors forming a crossed array and separated from the gas by insulating material. A display panel comprises glass plates 16, 17 supporting an orthogonal array of electrodes 13-1, 13-2 ... and 14-2 ... coated with photoemissive solder glass films 10, 11. The plates are fused to spacers 15 and sealed by devitrified glass 15s. Solder glass spacers 15B are fused to films 10, 11 to provide additional support. The electrodes are of tin oxide, Au or Al and are formed by photoetching, vacuum deposition or stencil screening. Alternatively Cu, Au, Ag or Al wires may be used. The panel which may be curved is filled with Ne and N 2  at a pressure high enough to localize discharge at electrode intersections. The electrodes may cross at an angle other than 90 degrees or may be shaped to form characters and have different widths. In another embodiment the electrodes and dielectric films are deposited in grooves cut in the glass plates. In either case the plates and the associated electrodes extend beyond the gas space to permit connection to addressing circuitry. The firing potential between electrodes is lowered by providing free electrons uniformly distributed throughout the gas. These are produced by applying a firing potential of variable phase and a sustaining sine wave potential to selected conductors which may form part of the display or be masked. Such electrons may be produced by U.V. radiation or by the inclusion of radio-active material in the dielectric films or gaseous space. Linescanning or high-speed random access addressing systems may be used.
Patent GB-1491867-A (GB)
Title: Direct vapour compression heat engine
IPC: F01K19/04
Filed: 1973-12-01
Abstract: 1491867 Vapour compression engine S JOHNSON 3 Feb 1975 [1 Dec 1973] 55784/73 Headings F1K, F1M and F1Q A vapour compression engine which employs steam or other vapour as the working medium works on a closed cycle in which vaporous working medium under pressure is heated and then adiabatically expanded to a lower pressure while work is extracted and after expansion the medium is adiabatically compressed directly from the lower pressure to its initial condition prior to heating. As shown a turbine 10 comprises an annular steam chest 11 which receives live steam from a superheater 30 via a pipe 12 and a main stop-valve 13. After expansion in the turbine 10 the steam is discharged into an intermediate chamber 18. The steam is then compressed in a rotary compressor 20 which delivers steam through a pipe 25 into the super-heater 30 from which it is fed back again to the turbine. An alternative embodiment (not shown) comprises a piston engine. Each cylinder of the engine comprises a single acting expansion piston and a compression piston between the expansion piston and a cylinder head cover. A system for regulating the fuel supply to a superheater and simultaneously controlling the supply of steam to the engine is described.
Patent GB-1199930-A (GB)
Title: Gramophone Record Dispensing Means
Inventor: MANZI ANTONY
IPC: G07F11/42
Filed: 1966-12-13
Abstract: 1,199,930. Dispensing articles. A. MANZI. 6 Oct., 1967 [13 Dec., 1966], No. 55789/66. Heading A4T. A gramophone record dispensing unit comprises a casing 1 having a support 11 passing through the holes of a stack 13 of records which are urged by gravity or a spring to abut an end stop 17 projecting radially of the support at 18 and carried on a rotatable shaft 10 offset to the axis of the support, the stop having a shifting lug 19 projecting partly within a forward hole or holes whereby, on roation of shaft 10 by a motor and reduction gearing under e.g. coin and cam switch control, a predetermined number of records may be shifted to be dispensed over the stop.
Patent GB-1216682-A (GB)
Title: A delivery valve arrangement of fuel injection pumps for internal combustion engines
Inventor: KELLER ULRIKH ULRIKHOVICH
IPC: F02M59/46
Filed: 1967-12-08
Abstract: 1,216,682. 682. Fuel injection pumps. TSENTRALNY NAUCHNO-ISSLEDOVATELSKY I KONSTRLIKTORSKY INSTITUT TOPLIVNOI APPARATURY AVTOTRAKTORNYKH I STASTIONARNYKH DVIGATELEI. Dec. 8, 1967, No. 55874/67. Heading F1A. A fuel injection pumps outlet valve includes a spring loaded lift valve which permits reverse flow from the outlet line through a throttle passage when the delivery ceases.
Patent GB-1276389-A (GB)
Title: The production of fibres from a film of a plastics material
Inventor: SCOTT-COOK ROBERT LAWRENCE
IPC: D04H1/54
Filed: 1969-11-19
Abstract: 1276389 Making fibres by cutting IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Nov 1970 [19 Nov 1969] 56653/69 Heading B5B [Also in Division D1] Fibres suitable for making non-woven fabrics are cut from a superposed plurality of film layers of a plastics material, at least one side of each layer being coated with a heat sensitive adhesive. The layers may be in a flat stack and be planed at their edges or (preferably) may comprise a film on a reel which is held in a lathe and rotated while cutter(s) is/are advanced towards it either radially or axially. The film may be uniaxially and/or biaxially oriented and/or be a laminate of which the plies have differing internal stresses whereby a crimped product can be obtained. In examples a reel of balanced biaxially drawn polypropylene coated with P.Vd.C. is cut using reel rotation speeds of 34-750 r.p.m. with peripheral cutting speeds of 60-1550 f.p.m. and cutting depths of 0À025-0À0025 inches.